Acquisitions - Summary of Allocation of Purchase Price (Detail) - USD ($) $ in Thousands |
May 05, 2016 |
Apr. 30, 2017 |
Jan. 31, 2017 |
Aug. 01, 2016 |
|---|---|---|---|---|
| Estimated Fair value of assets acquired and liabilities assumed: | ||||
| Goodwill | $ 23,623 | $ 23,287 | ||
| DCC Labs [Member] | ||||
| Estimated Fair value of consideration: | ||||
| Cash, net of cash acquired | $ 5,243 | |||
| Stock consideration | 2,640 | |||
| Total purchase price | 7,883 | |||
| Estimated Fair value of assets acquired and liabilities assumed: | ||||
| Current assets | 826 | |||
| Other long-term assets | 116 | |||
| Finite-life intangible assets | 810 | |||
| Goodwill | 7,255 | $ 45,800 | ||
| Current liabilities | (618) | |||
| Other long-term liabilities | (506) | |||
| Allocated purchase price | $ 7,883 |